Roller-bearing for radial and thrust loads.



C. LOCKWOOD. ROLLEM BEARING FOR RADIAL, MD '.lHRU'l' MAUS. AIILIUAfl'lUNI'1LHDOC'I-5 l9ll` 15,049,501 Patented Jan. 7, 1913.

2W f l) UNITED STATES PATENT' OFFICE. l

CHARLES S. LOCKWOOD, OF NEWARK. NEW JERSEY, ASSIGNOR TO HYATT ROLLER-BEARING COMPANY, OF HARRISON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

ROLLER-BEARING FOR RADI AL AND THRUST LOADS,

To all nfiiom it may concern.:

Be it known that I, CHARLES S. Lockwood' a citizen of the United StatesVresiding at 289 lvlarket street Newark. count 1 oi lussen.

y Y 7 I and State of hcw Jersey7 have invented certain new and usefullmprovcn'ients ni Roller- Beni-mos for Radial and 'lhrust Loads. 1 .h nu-lly described and represented in the rollowing specification and theaccompanying drawings, foi-initie;` a part otl the same.

The present invention relates to roller bearings havingY a hub andcasing with opposed grooves at the middle of their length7 and rollsitted to the hub and casing at opposite sides oit' such groove and adiskfitted to the grooves and rot-ating therein independently of therolls. To hold the disks from tipping when the bearing is subjected toend thrust and to siuiport the rolls and disks, concentric with oneanother, cageheads are provided in opposite ends of theI casing',spiiulles nre extended from the rage-- heads throuigh` the rolls7 andthe spindles arev furnished with collars next the cagehcads to supportthe outer ends oi therolls, and the disk is formed with a hub to supportthe inner ends ot the rolls. As the disks are larger than the rolls,they necessarily rotate at the slower speed, and injurious friction isavoided by supportingthem to tarn indepelulently oi the rolls. Bysupporting the rolls at. opposite ends only upon the spindles` they areenabled to rotate with less friction, while they are guided with entireaccuracy.

In roller-bearinos provision has been sometin'ies made to faire thethrust upon the ends of the rolls` but any such construction produces africtions] resistance to the movement of the roll at. one end or theother, t-hus tending' to twist. itout of nlinement. By using` meansindependent of the rolls to resist end thrust', such tendency is whollyavoided.

TWO forms ot' construction are illustrated in the annexed drawing, allshowing' the casing` and hub with opposed coincident grooves. and disksrotatable independently 'of the rolls and fitted to such `grooves; but

the disks are shown mounted in the cage in three different modes, eachot which has the same etliect, in preventing the disks from tipping,when resisting' end thrust upon the casing. In the firstI form, aspindle Specication of Letters Patent.

Patented Jan. '7, 1913.

Application filed October 6, 1911. Serial No. 653,273.

is extended transversely of the cage through each of the rolls and thedisk is arranged to rotate looselyupon the spindle; the spindles servingalsobas tie-bars for the cage, by securing' their ends rigidly in theCaglerings. In the second form, independent tiebars connect the cagebetween the several rolls7 and the spindles are made integral with thedisks and rotate in journals upon the cage. In both these forms, therolls are divided in the middle and the disks are located in such middlespace concentric with the rolls. The rolls are lthus divided into twosets, one at each end of the casing.

r1`he invention will be nn'derstoodby reierence to the annexed drawing,which shows one construction in Figures l to 5 inclusive, and amodication in Figs. 6 to 8 inclusive. Fin. l, is an end view ot abearing.;` embodying` the invention; Fig. 2 is a lon- Qgitudinalsection, where hatched, on line 2 2 in Fig. 1; Fig. 23 is a perspectiveview of a spindle-collar; Fig. i is an elevation. of. aV disk to rotateupon t-he spindle; Figi is an elevation of the spindle to carry a diskrotatable thereon; Fig. 5a is a perspective view of one of the rolls;Fig. .is a l end View of a bearing with a modified coulx struction forthe disk and spindle; Fig. 7 is a loiigitudinal section, where hatched,on line 7-7 in Fig.- 6; and Fig. 8 is an elevation of a spindle withthevdisk attached.

The hub a, is formed with an external `groove bat the middle (if itslength.

.C designates the casing, and d hollow cylindrical rolls formed each ofa spil-ally Wound strand and fitted between the hub and casing. Thecasing is recessed at one end toreceive a sleeve f, and the bottom ofthe recess and the inner end of the collar are shaped to form a groove bcoincidenty with and opposed to the groove Thev sleeve`is secured in thecasing' bv n pin. The cage is formed of two rings 71, 7i', shown inFigs. l and 2 with spindles f/ extended ansversely between them andriveted thereto: such spindles thus servingI as tiebars. The spindlesare' provided near their ends with collars c which are fitted to reducedends g upon the spindle, as shown in Fig. lntermedinte 'such reducedends. a disk 1 is fitted to turn loosely upon the spindle, being formedwith a hub y' to sustainthe Wear, and prevent the disk from .looselyupon the hub of the disk and upon the collars e. The rolls rest at theirends only upon the collars and the hub of the disk, and thus turn withvery little friction.

Thecagle thus guides the rolls accurately in their movenient around thehub, while the disks engage the grooves b and b and ro'- 'tatesindependently of the rolls. The en- Ygagement of the disks with -th'egrooves .ob-

viously resists any tendency of the hub and casing to movelongitudinally in relation to one another, andproduces such effectwithout pressing the rolls endwise in any degree, or retarding them intheir movementby frictional pressure thereon.. f

In assembling the parts of Fig. 2, the

, spindles g. are riveted at one end in the ring l7L, and the rolls dare then fitted over the spindles and collars c. The disks are thenapplied to the groove d in the hub and the free ends of the spindlesinserted through the same. The rolls d and the collars e are 1 thenapplied to the spindle,'and the ring h finally riveted upon their-ends.The rolls and.disks are thus enabled to turn freely around thespindles,.andi each performs its own function without interference withthe operation of the o-ther, the rolls operating to sustain the radialload and the disks to resist end thrust.. The casing without the sleevef is thenA applied to the rolls d and. the sleeve f inserted in the'recess of the caslng and secured therein, thus locking the casing uponthe rolls and hub, but leaving all the working parts entirely free torotate.

It has been common to form rolls with. integral collars to resist endthrust, but in the present construction 'entirely independent agenciesare employed to sustain the thrust and the radial load. A

In the second form, shown in Figs. 6 to 8 inclusive, the disks Z areshown integral with or secured rigidly upon the spindles g2, and theends of the spindles turn loosely in the rings 7b2. Such roller bearingsare `freely supplied with lubricant, so that the ends of the spindlesturn easily. vTo hold the rings in suitable position to carry thespindles rotatably, the rings are connected by tie-bars 11,3 shown inFig. 6, which tiebars a-re riveted in both of the rings after the partsbetween the rings are assembled. The construction of the hub and casingis the same in this second form, but the collars grooves at the middleof their length, of two sets of hollow rolls fitted to the casing andhub at opposite sidesof the grooves, cageheads within the opposite endsof the casing, spindles connecting the cage-heads within the two sets'of rolls and having collars next the cage-heads to support'the outerends of the rolls, and a disk upon the middle of each spindle engagingthe grooves between the two sets of rolls and having a hub to supportthe inner ends of the rolls."

2. In a roller bearing, the combination, lwith a casing and. hub havingcoincident grooves at the middle of their length, of a sleeve f in thecasing forming one side of the casing-groove, two sets of hollow rollsfitted to the casing and hub at opposite sides of the grooves,cage-heads within the opposite ends of the casing, spindles connectingthe cage-heads within the two sets of rolls and having loose collarsthereon to support the outer ends of the rolls, and a disk rotatablevupon the lmiddle of each spindle engaging the grooves between the twosetsof rolls and having a hub to support the inner ends of the rolls.

3. A roller bearing cage comprising heads it, L, spindles g connectingthe heads and' loose collars c iitted to turn upon the, spindlesadjacent to the heads for support-Y ing hollow rolls in the cage.

4. A roller bearing cage comprising heads fr, 7L', spindles g connectingthe heads, loose collars e fitted to turn upon the spindlesadjacent tothe heads, and a disk upon the middle of each spindle adapted to engagegrooves in the hub and casing of the bearing to resist end thrust.

In testimony whereof I have hereunto set my hand in. the presence of twosubscribing witnesses.

CHARLES S. LOCKWOOD.

Witnesses HAROLD S. SLOAN, CHAs. A. METZGER.

